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Finding the Fourth Proportional to 171,063.80, 256,595.70 and 126,886.40

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Solution

The fourth proportional to 171,063.80, 256,595.70 and 126,886.40 is: 190,329.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,063.80 : 256,595.70 = 126,886.40 : x
  2. Step 2: Convert to fraction form
    171,063.80/256,595.70 = 126,886.40/x
  3. Step 3: Cross multiply
    171,063.80x = 256,595.70 × 126,886.40
  4. Step 4: Simplify right side
    171,063.80x = 32,558,504,628.48
  5. Step 5: Solve for x
    x = 32,558,504,628.48/171,063.80
  6. Step 6: Final answer
    x = 190,329.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.